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arXiv 2005.13582hep-thmath-phmath.MPnlin.SI
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洛伦兹户田场论

Lorentzian Toda field theories

Andreas Fring, Samuel Whittington

摘要:

我们提出了几种不同类型的建设原则的新类户田场论的基础上定义的洛伦兹格的根系。类似于基于半单李代数的根系统的共形和仿射Toda理论,它们的洛伦兹扩展也出现在共形和大规模变体中。我们进行了Painlevé可积性测试所提出的理论,发现在一般情况下只有一个整数值的共振对应的能量动量张量。因此,大多数的洛仑兹户田场论都是不可积的,因为在半单情况下,对W-代数的自旋进行分级的其余共振要么是非整数值,要么是复值。我们详细分析了几个大规模的变体的经典质谱。洛仑兹户田场论可以被看作是可积理论的扰动版本,配备了代数框架。

英文摘要:

We propose several different types of construction principles for new classes of Toda field theories based on root systems defined on Lorentzian lattices. In analogy to conformal and affine Toda theories based on root systems of semi-simple Lie algebras, also their Lorentzian extensions come about in conformal and massive variants. We carry out the Painlevé integrability test for the proposed theories, finding in general only one integer valued resonance corresponding to the energy-momentum tensor. Thus most of the Lorentzian Toda field theories are not integrable, as the remaining resonances, that grade the spins of the W-algebras in the semisimple cases, are either non integer or complex valued. We analyse in detail the classical mass spectra of several massive variants. Lorentzian Toda field theories may be viewed as perturbed versions of integrable theories equipped with an algebraic framework.

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